Comptia braindumps2go da0-001 Leak Questions by Ruth q27 vce pdf

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Exam Name:	CompTIA Data+ Certification Exam
Exam Code:	DA0-001 Dumps
Vendor:	CompTIA	Certification:	CompTIA Data+
Questions:	396 Q&A's	Shared By:	ruth

Question 8

When analyzing the values of two variables, you decide to convert both variables so they are on a scale of 0 to 1.

What term describes this action?

Options:

Filtering.

Normalization.

Transposition.

Aggregation.

Discussion

Question 9

What subset of Structured Query Language (SQL) is used to add, remove, modify, or retrieve the information stored within a relational database?

Options:

DDL.

DSL.

DQL.

DML.

Discussion

Question 10

What R package makes it easy to work with dates?

Options:

Lubridate.

Datemath.

Stringr.

ggplot.

Discussion

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Question 11

Consider the following dataset which contains information about houses that are for sale:

Questions 11

Which of the following string manipulation commands will combine the address and region namecolumns to create a full address?

full_address------------------------- 85 Turner St, Northern Metropolitan 25 Bloomburg St, Northern Metropolitan 5 Charles St, Northern Metropolitan 40 Federation La, Northern Metropolitan 55a Park St, Northern Metropolitan

Options:

SELECT CONCAT(address, ' , ' , regionname) AS full_address FROM melb LIMIT 5;

SELECT CONCAT(address, '-' , regionname) AS full_address FROM melb LIMIT 5;

SELECT CONCAT(regionname, ' , ' , address) AS full_address FROM melb LIMIT 5

SELECT CONCAT(regionname, '-' , address) AS full_address FROM melb LIMIT 5;